Electrode plate coating processing brushing structure

Abstract

The utility model discloses an electrode slice coating processing brushing structure, which is characterized in that a clamping mechanism stably clamps an electrode slice below a brushing unit, during brushing, a paint pumping device injects paint into a brush head through a hose and a drip nozzle, a vertical linear guide rail in a biaxial linear guide rail group drives a brush to descend and enables the brush head to touch the surface of the electrode slice, and the electrode slice is brushed by the brush head. Then a transverse linear guide rail in the biaxial linear guide rail group drives a brush to brush the surface of the electrode slice back and forth, and meanwhile, in the back-and-forth brushing process, a steering engine continuously adjusts the included angle between a brush head and the surface of the electrode slice so as to improve the brushing quality; the whole brushing process does not need manual operation, the automatic development trend of production and manufacturing is met, the uniformity of the brushing thickness of the coating on the surface of each electrode plate can be effectively guaranteed, the technical problem that the labor intensity is large when brushing is completed manually in the current electrode plate coating processing process can be effectively solved, and the effect of improving the coating processing quality is achieved.

Description

Technical Field

[0001] This utility model belongs to the technical field of electrode sheet production, and specifically relates to a brushing structure for electrode sheet coating processing. Background Technology

[0002] Electrode sheets are widely used in battery and heater manufacturing and water electrolysis processes. To improve the stability of battery charge and discharge cycles, the heat transfer performance of heaters, or the electrolysis efficiency, appropriate coatings need to be brushed onto the electrode sheets to create a coating with corresponding effects on the electrode sheet surface.

[0003] Now it is necessary to... Figure 1 The electrode sheet shown is coated, and two different coatings are applied to both sides of the electrode sheet in the thickness direction. The electrode sheet 1 includes an electrode body 12, which is in the shape of a long strip. One end of the electrode body extends vertically to form a transition section 13, and the free end of the transition section extends away from the other end of the electrode body and bends to form a mating section 14. The coating process of the electrode sheet includes loading, preheating, brushing, drying and unloading. Currently, brushing is mostly done manually, that is, a brush is used to apply coating to the surface of the electrode sheet. This operation is not only labor-intensive and inefficient, but the coating thickness on the surface of each electrode sheet is greatly affected by personal habits, which can easily lead to inconsistent coating quality on each electrode sheet. Summary of the Invention

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of this utility model is to provide a brushing structure for electrode coating processing, which solves the technical problem of high labor intensity caused by manual brushing in the current electrode coating processing, and achieves the effect of improving the coating processing quality.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A brushing structure for coating electrode sheets includes a brushing unit and a clamping mechanism for holding the electrode sheets. The brushing unit includes a biaxial linear guide rail assembly located directly above the clamping mechanism. A brush with its head facing downwards is rotatably connected to the biaxial linear guide rail assembly via a servo motor. The biaxial linear guide rail assembly is equipped with a paint supply unit for injecting paint into the brush head of the brush. The biaxial linear guide rail assembly is used to adjust the horizontal and vertical positions of the brush to brush the electrode sheets. The axial direction of the servo motor's rotation shaft is perpendicular to the plane containing the two axial directions of the biaxial linear guide rail assembly. The servo motor is used to adjust the tilt angle between the brush head and the electrode sheet during brushing.

[0007] Furthermore, the paint supply unit includes a vertically oriented paint storage cylinder with its opening facing upwards. The lower end of the paint storage cylinder is connected to a solenoid valve via a pipe. The solenoid valve is connected to a drip nozzle via a hose. The drip nozzle is located inside the brush head of the brush to inject paint into the brush head.

[0008] Furthermore, the electrode coating processing brushing structure also includes a transport unit, which includes a slide rail connected end to end on the worktable, a trolley that can move along the slide rail, a clamping mechanism on the trolley, and a biaxial linear guide rail assembly on the worktable.

[0009] Furthermore, the brushing unit consists of two units spaced apart along the slide rail. The clamping mechanism employs a two-finger rotating jaw. The two jaws of the two-finger rotating jaw are rod-shaped and parallel to each other. The jaws are horizontally positioned and their length direction is perpendicular to the axial direction of the servo motor shaft. Each of the opposing surfaces of the two jaws has a protruding clamping portion for clamping the electrode sheet. The end of the clamping portion is V-shaped and matches the thickness of the electrode sheet to stably clamp the electrode sheet.

[0010] Furthermore, the two-finger rotary gripper is pneumatically driven with its interface facing upwards. A lifting mechanism is provided on the worktable, and a quick connector is vertically mounted on the lifting mechanism. The input end of the quick connector is connected to the air supply equipment, and the output end of the quick connector faces downwards and is located directly above the corresponding interface on the two-finger rotary gripper. The lifting mechanism can drive the quick connector to connect with the interface of the two-finger rotary gripper on the trolley so that the air supply equipment can drive the two-finger rotary gripper to flip the electrode sheet.

[0011] Furthermore, the slide rail is connected end to end in a ring and includes four straight segments and arc segments connected in sequence. A trolley is provided on the slide rail at each of the two brushing units and is located on the straight segment. The trolley has a cylindrical positioning part that is perpendicular to the straight segment and extends laterally to the outside of the slide rail. An adjustment block is provided near the trolley at the brushing unit. The upper end of the adjustment block has an upward-facing V-shaped notch. The V-shaped notch is located directly below the cylindrical positioning part on the trolley. A second cylinder is vertically provided below the adjustment block. The piston rod of the second cylinder faces upward and is connected to the adjustment block. The second cylinder can drive the adjustment block to rise and position the cylindrical positioning part inside the V-shaped notch.

[0012] Furthermore, the inner side of the slide rail is provided with a ring-shaped belt concentric with the slide rail. Guide wheels are provided at the four arc segments on the inner side of the belt. Each guide wheel is driven by a motor. The inner side of the belt and the outer surface of the guide wheel are both toothed and meshed. The trolley and the belt are fixedly connected by bolts. The shank of the bolt passes through the belt outward and is threaded to the trolley. A clearance groove is opened on the outer surface of the guide wheel to make way for the head of the bolt.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] In the electrode coating processing brushing structure described in this utility model, the clamping mechanism stably clamps the electrode sheet below the brushing unit. During brushing, the paint pumping device injects paint into the brush head through a hose and a nozzle. The vertical linear guide rail in the dual-axial linear guide rail group drives the brush to descend and bring the brush head to the surface of the electrode sheet. Then, the horizontal linear guide rail in the dual-axial linear guide rail group drives the brush to brush the surface of the electrode sheet back and forth. At the same time, during the back and forth brushing process, the servo motor continuously adjusts the angle between the brush head and the surface of the electrode sheet to improve the brushing quality. The automatic control of the trolley movement, the dual-axial linear guide rail group and the servo motor movement can be realized by using a microcontroller or PLC programming. The entire brushing process does not require manual operation, which is in line with the trend of automation in manufacturing. The uniformity of the paint thickness on the surface of each electrode sheet can also be effectively guaranteed. It can effectively solve the technical problem of high labor intensity in the current electrode sheet coating processing where manual brushing is performed, and achieve the effect of improving the coating processing quality. Attached Figure Description

[0015] Figure 1 This is a perspective view of the electrode sheet described in the background art;

[0016] Figure 2 This is a schematic diagram of the brushing unit described in the embodiment (with the biaxial linear guide rail assembly and brush hidden);

[0017] Figure 3 This is a perspective view of the workbench and transport unit described in the embodiment;

[0018] Figure 4 This is a schematic diagram of the dual-axis linear guide rail assembly, servo motor, brush, and paint supply unit described in the embodiment.

[0019] Figure 5 This is a perspective view of the two-finger rotating gripper described in this embodiment;

[0020] Figure 6 This is a schematic diagram showing the state of the electrode sheet when the two-finger rotating gripper holds the electrode sheet in this embodiment;

[0021] The components include: electrode sheet 1, electrode body 12, transition section 13, mating section 14; worktable 21; slide rail 31, trolley 32, belt 33, guide wheel 34, clearance groove 35, cylindrical positioning part 36, adjusting block 37, second cylinder 38, motor 39, two-finger rotating gripper 4, power body 41, rotating table 42, gripper 43, clamping part 44; dual-axis linear guide rail assembly 71, brush 72, servo motor 73, paint storage cylinder 74, pipe 75, solenoid valve 76, hose 77; third cylinder 94, mounting plate 95, quick connector 96. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0023] It should be noted that similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. In addition, the terms "horizontal," "vertical," etc., do not indicate that the component is required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted. In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Example:

[0025] Please see Figure 2 and Figure 4A brushing structure for coating electrode 1 includes a brushing unit and a clamping mechanism for holding the electrode 1. The brushing unit includes a biaxial linear guide rail assembly 71 located directly above the clamping mechanism. A brush 72 with its head facing downwards is rotatably connected to the biaxial linear guide rail assembly 71 via a servo motor 73. The biaxial linear guide rail assembly 71 is equipped with a paint supply unit for injecting paint into the brush head of the brush 72. The biaxial linear guide rail assembly 71 is used to adjust the horizontal and vertical positions of the brush 72 to brush the electrode 1 with paint. The servo motor 73 has its axis perpendicular to the plane containing the two axes of the dual-axis linear guide rail assembly 71. The servo motor 73 is used to adjust the angle between the brush head and the electrode plate 1 during brushing. The two claws 43 of the two-finger rotating gripper 4 are rod-shaped and parallel to each other. The claws 43 are horizontally set and their length direction is perpendicular to the axis of the servo motor 73. The opposing surfaces of the two claws 43 are raised to form a clamping part 44 for clamping the electrode plate 1. The end of the clamping part 44 is V-shaped and matches the thickness of the electrode plate 1 to stably clamp the electrode plate 1.

[0026] In this embodiment, the brushing unit includes a first brushing unit and a second brushing unit, which are arranged at intervals along the slide rail 31. The clamping mechanism is a two-finger rotating gripper 4 (an existing product, i.e., a rotating finger cylinder or electric rotating finger with two grippers 43, as shown in Figure 4. The two-finger rotating gripper 4 includes a power body 41, one end of which is rotatably connected to a rotating platform 42. The rotating platform 42 integrates two gripper seats that can be retracted and opened. The two grippers 43 can be designed and processed as needed and detachably connected to the gripper seats) for clamping and flipping the electrode sheet 1.

[0027] Please see Figure 4 In this embodiment, the paint supply unit includes a vertically oriented paint storage cylinder 74 with its opening facing upwards. The lower end of the paint storage cylinder 74 is connected to a solenoid valve 76 via a pipe 75. The solenoid valve 76 is connected to a drip nozzle (not shown in the figure) via a hose 77. The drip nozzle is located inside the brush head of the brush 72 to inject paint into the brush head. In practice, the brush can adopt the following structure: the brush head of the brush 72 includes a square closed shell, and a plurality of small holes are opened on the lower end face of the shell. The plurality of small holes are distributed in a rectangular array and are axially aligned with the servo motor shaft. The distribution length is not less than the width of the electrode sheet. The small hole is filled with bristles. The upper end of the bristles is connected to the inner cavity of the housing through the small hole, and the lower end of the bristles extends to the outside of the housing. All the bristles outside the housing are of equal length so that the lower ends of the brush are flush. A tube hole is opened on one side of the housing. The hose 77 passes through the tube hole in a sealed manner and is connected to the dropper in the housing. The paint can be replenished at regular intervals. A liquid level sensor can also be installed in the housing and connected to the solenoid valve 76. Compared with timed paint injection, the injection of paint can be more accurate by controlling the opening of the solenoid valve 76 through the liquid level sensor.

[0028] In the electrode coating processing brushing structure of this utility model, the clamping mechanism stably clamps the electrode 1 below the brushing unit. During brushing, the paint pumping device injects paint into the brush head through a hose and a nozzle. The vertical linear guide in the biaxial linear guide group 71 drives the brush 72 to descend and bring the brush head to the surface of the electrode 1. Then, the horizontal linear guide in the biaxial linear guide group 71 drives the brush 72 to brush the surface of the electrode 1 back and forth. At the same time, during the back and forth brushing process, the vertical linear guide in the biaxial linear guide group 71 drives the lifting and lowering mechanism, and the servo motor 73 adjusts the brush head and the electrode 1. The included angle of the electrode sheet 1 surface is adapted to match the height and shape of the transition section 13 and mating section 14 on the electrode sheet 1 to improve the brushing quality. The automatic control of the movement of the trolley 32, the action of the dual-axis linear guide rail group 71 and the servo motor 73 can be realized by using a microcontroller or PLC programming. The entire brushing process does not require manual operation, which is in line with the trend of automation in production and manufacturing. The uniformity of the coating thickness on the surface of each electrode sheet 1 can also be effectively guaranteed. This can effectively solve the technical problem of high labor intensity in the current coating processing of electrode sheet 1 by manual brushing, and achieve the effect of improving the coating processing quality.

[0029] Please see Figure 2 and Figure 3 The electrode coating processing brushing structure also includes a transport unit, which includes a slide rail 31 connected end to end on the worktable 21. A trolley 32 that can move along the slide rail 31 is provided on the slide rail 31, and the clamping mechanism is provided on the trolley 32. In this embodiment, the two grippers 43 of the two-finger rotating gripper 4 are perpendicular to the slide rail 31. In this way, the processing station for the remaining steps of the coating processing can be set based on the slide rail 31. Through the cooperation of the trolley 32 and the slide rail 31, the electrode sheet 1 does not need to be manually transferred before and after brushing, which can further improve the automation level of the coating processing and reduce the labor intensity of workers.

[0030] Please see Figure 2 Since the two-finger rotating gripper 4 moves with the trolley 32, to solve the power supply and control of the two-finger rotating gripper 4, in this embodiment, a pneumatically driven two-finger rotating gripper 4 (i.e., a rotating finger cylinder) is used. The two grippers 43 of the two-finger rotating gripper 4 remain closed when not pressurized (gripping state, which is a built-in function setting of the gripper). A lifting mechanism is provided at the brushing unit, and a quick connector 96 is vertically provided on the lifting mechanism. The input end of the quick connector 96 faces upward and is connected to the air supply device (not shown in the figure). The lifting mechanism can drive the quick connector 96 to connect with the interface of the two-finger rotating gripper 4 on the trolley 32 so that the air supply device can drive the two-finger rotating gripper 4 to move. The lifting mechanism can drive the quick connector 96 to connect with the interface of the two-finger rotating gripper 4 on the trolley 32 so that the air supply device can drive the two-finger rotating gripper 4 to flip the electrode plate 1; such as Figure 2As can be seen, the power unit 41 has three interfaces. The single front interface is used to connect to the air supply and control the opening of the two grippers 43. The two adjacent rear interfaces are used to connect to the air supply and control the forward and reverse rotation of the rotary table 42 according to the different actual air intake interfaces. In this embodiment, the lifting mechanism is a third cylinder 94. The third cylinder 94 is fixed on the worktable 21. The piston rod of the third cylinder 94 is vertically oriented and connected to a horizontally set mounting plate 95. The quick connector 96 is located at one end of the mounting plate 95.

[0031] Please see Figure 2 and Figure 3 Because brushing requires precise positioning of the electrode plate 1, to ensure the trolley 32 remains stably and accurately positioned at the brushing unit, and to ensure accurate engagement between the biaxial linear guide rail assembly 71 and the two-finger rotating gripper 4 on the trolley 32 for brushing, the trolley 32 and the slide rail 31 are equipped with the following mutually cooperating positioning structure: The slide rail 31 is connected end to end in a ring shape and includes four sequentially spaced straight segments and an arc segment. Trolleys 32 are provided at both brushing units on the slide rail 31 and are located on the straight segments. Each trolley 32 has a feature perpendicular to its corresponding straight segment and extending laterally... A cylindrical positioning part 36 extends out of the slide rail 31. An adjustment block 37 is provided near the trolley 32 at the brushing unit. The upper end of the adjustment block 37 has an upward-facing V-shaped notch (in practice, it can also be a semi-circular notch adapted to the cylindrical positioning part 36). The V-shaped notch is located directly below the cylindrical positioning part 36 on the trolley 32. A second cylinder 38 is vertically provided below the adjustment block 37. The piston rod of the second cylinder 38 faces upward and is connected to the adjustment block 37. The second cylinder 38 can drive the adjustment block 37 to rise and position the cylindrical positioning part 36 within the V-shaped notch.

[0032] Please see Figure 3 In this embodiment, the trolley 32 is driven by the following structure: a belt 33 is provided on the inner side of the slide rail 31 in a ring shape and concentric with the slide rail 31. Guide wheels 34 are provided at the four arc segments on the inner side of the belt 33. Each guide wheel 34 is driven by a motor 39. The inner side of the belt 33 and the outer surface of the guide wheel 34 are toothed and meshed. The trolley 32 and the belt 33 are fixedly connected by bolts. The shank of the bolt passes through the belt 33 and is threadedly connected to the trolley 32. A clearance groove 35 is provided on the outer surface of the guide wheel 34 to allow space for the bolt head. In this way, while improving the transmission accuracy of the belt 33, interference between the belt 33 and the trolley 32 and the transmission of the belt 33 is avoided.

[0033] To facilitate understanding of the electrode coating processing brush structure described in this utility model, its specific workflow is as follows:

[0034] 1) The clamping mechanism horizontally clamps the electrode sheet 1, moves with the trolley 32 to the first brushing unit and stops. The second cylinder 38 drives the adjusting block 37 to rise and makes the cylindrical positioning part 36 located in the V-shaped notch to achieve precise positioning of the trolley 32. The paint pumping device injects paint into the brush head through the hose and the nozzle. The vertical linear guide in the dual-axis linear guide group 71 drives the brush 72 to fall and makes the brush head touch the surface of the electrode sheet 1. Then the dual-axis linear guide group 71 and the servo motor 73 brush the paint on one side of the surface of the electrode sheet 1 according to the program path.

[0035] 2) After one side of the electrode plate 1 is brushed, the biaxial linear guide rail assembly 71 drives the brush 72 back to the initial position. The lifting mechanism drives the quick connector 96 to fall and connect with the interface of the two-finger rotating gripper 4. The air supply device drives the two grippers 43 of the two-finger rotating gripper 4 to rotate 180° through air pressure, so that the other side of the electrode plate 1 flips upward. The third cylinder 94 drives the quick connector 96 to rise and separate from the interface of the two-finger rotating gripper 4. The second cylinder 38 drives the adjusting block 37 to fall. Then the trolley 32 moves to the second brushing unit to brush the other side of the electrode plate 1.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and not to limit the technical solutions. Those skilled in the art should understand that any modifications or equivalent substitutions to the technical solutions of this utility model that do not depart from the spirit and scope of this technical solution should be covered within the scope of the claims of this utility model.

Claims

1. A brush wiping structure for electrode sheet coating processing, characterized in that: The device includes a brushing unit and a clamping mechanism for holding electrode sheets. The brushing unit includes a dual-axis linear guide rail assembly located directly above the clamping mechanism. A brush with its head facing downwards is rotatably connected to the dual-axis linear guide rail assembly via a servo motor. The dual-axis linear guide rail assembly is equipped with a paint supply unit for injecting paint into the brush head. The dual-axis linear guide rail assembly is used to adjust the horizontal and vertical positions of the brush to brush the electrode sheets. The axial direction of the servo motor's rotation shaft is perpendicular to the plane containing the two axial directions of the dual-axis linear guide rail assembly. The servo motor is used to adjust the tilt angle between the brush head and the electrode sheet during brushing.

2. The electrode sheet coating processing brush wiping structure according to claim 1, characterized in that: The paint supply unit includes a vertically oriented paint storage cylinder with its opening facing upwards. The lower end of the paint storage cylinder is connected to a solenoid valve via a pipe. The solenoid valve is connected to a drip nozzle via a hose. The drip nozzle is located inside the brush head of the brush to inject paint into the brush head.

3. The electrode sheet coating processing brush wiping structure according to claim 1, characterized in that: The electrode coating processing brushing structure also includes a transport unit, which includes a slide rail connected end to end on the worktable. A trolley that can move along the slide rail is provided on the slide rail. The clamping mechanism is provided on the trolley, and a biaxial linear guide rail assembly is also provided on the worktable.

4. The electrode sheet coating processing brush wiping structure according to claim 3, characterized in that: The brushing unit consists of two units spaced apart along the slide rail. The clamping mechanism employs a two-finger rotating jaw. The two jaws of the two-finger rotating jaw are rod-shaped and parallel to each other. The jaws are horizontally positioned and their length direction is perpendicular to the axis of the servo motor shaft. Each of the opposing surfaces of the two jaws has a protruding clamping part for clamping the electrode sheet. The end of the clamping part is V-shaped and matches the thickness of the electrode sheet to stably clamp the electrode sheet.

5. The electrode sheet coating processing brush wiping structure according to claim 4, characterized in that: The two-finger rotary gripper is pneumatically driven with its interface facing upwards. A lifting mechanism is provided on the worktable, and a quick connector is vertically mounted on the lifting mechanism. The input end of the quick connector is connected to the air supply equipment, and the output end of the quick connector faces downwards and is located directly above the corresponding interface on the two-finger rotary gripper. The lifting mechanism can drive the quick connector to connect with the interface of the two-finger rotary gripper on the trolley so that the air supply equipment can drive the two-finger rotary gripper to flip the electrode sheet.

6. The electrode sheet coating processing brush wiping structure according to claim 4, characterized in that: The slide rail is connected end to end in a ring and includes four straight segments and an arc segment connected in sequence. A trolley is provided on the slide rail at each of the two brushing units and is located on the straight segment.

7. The electrode sheet coating processing brush wiping structure according to claim 6, characterized in that: The inner side of the slide rail is provided with a ring-shaped belt that is concentric with the slide rail. There are guide wheels at the four arc segments on the inner side of the belt. Each guide wheel is driven by a motor. The inner side of the belt and the outer surface of the guide wheel are both toothed and meshed. The trolley and the belt are fixedly connected by bolts. The shank of the bolt passes through the belt outward and is threaded to the trolley. A clearance groove is opened on the outer surface of the guide wheel to make way for the head of the bolt.

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